Trolley-wire frog



Q 5 5 S, 5 4, 4 y l nmGw i0 KR AF. mm .AMW SVI .IE DM no Gm Feb. 2M, 1923,

2 SHEETS-SHEET l.

FILED JAN. 12. 1922.

Feb.. 2U, 1923.

G. D. SLAYMAKER.

TROLLEY WIRE FROG.

2 SHEETS-SHEET 2.

FILED JAN.12. 1922.

llaa@ G-nonen n.v snerinarnn, or nn'rnoIT. miorrIeff-i'n, .essronon fro Sherri/renna ELECTRIC wnnnrno ooinranr, or nnrnorr, Inici-Ireen", a oon'roearr'on or MICHIGAN.

TROLLEY-WIRE FROG.

application filed January E, i922.

` a specification.

. l another.

rlhis invention relates to trolley wire frogs or switchesa and has tor its ob]ect a trolley` wire trop; provided with adjustable runners which are renewable whenever this is deemed expedient. 'llhis frog` is also provided witha removable. pan which consists or a wear piece between the runnersk and is easily removed withoutrenewing the entire device. Furthermore, the runners and pan are supported below the main plate so that the runners and pan may be easily removed 'from the plate without lin any way disturbing;` the support oit' the plate upon the guy wires and poles.` This is an important feature as these guy wires are always under ay certain prescribed tension and it is very inconvenient and troublesome to remove the entire frog and replace it.` By the arrange- Inent or my runners it is possible to remove both the runners and `the pan without in any way disturbing the supporter' the frog upon the guy wires.

Another feature of my invention is the adjustability of the runners with respect to one The twoI movable or spur runners can be swung around on the main supporting plate each through a considerable are yet always remain in position7 which permits the trolley wheel to travel from the stationary runner to either of the spur runners, or viee versa, depending, ol course, upon the path taken by the car beneath. This permits the use oi. a single type ot frog' for various angularities oit the spur line with respect to the main line and henceit is not necessary to have numerous patterns or dies to taire care ot all desired angles.

ln the drawings,- Fig. l an inverted plan View of the 2 a side elevation of the same.

is a sectionbn the line 3-3 of semaine. '52s,592.

vll? 1g. l blind.

.Fie-

fl. Il* 1g. F Y lug'. Fig. 1. l. l

a designates the mainsupporting plate. To this is bolted the vstationary or main run-` ner b by the bolts o. This main runner is section on the line l-e 5 section on the line the vline GWG line 7--7 section on 7 section on the of shown in detail in Fig. a, lit will be seen v The spur or adjustable runners g are not clamped to the trolley plate the same way. They carried on the radins arins i'zlwhich have their centers at z'. The runners and the runner points are somewhat offset from the main axes of the radius arms, as is clearly shown in Fig. l. Each of the cen-` ters .ab i, is substantially on a perpendicular line through the point of the stationary runner 7M-perpendicular to the axis of the stationary runner. ,Each oit these centers is as close on either side of the point or' the main runner as Jfeasible and still allow the radius arins to be cleared by the iianges ot the trolley wheel. This results `in the points of the swinev np; or spur runners swinging on ares approximating; au are whose center is Cgi be clamped tightly in any given position ot adjustment. The main plate a is somewhat segmental in form and is provided at the four corners m With perforations to receive the guy Wires.

It Will be apparent that the main or stationary runner can be removed by loosening and removing the bolts c While the swinging runners can be removed by taking out the bolts 7c and the pivot bolts z'. The pivot bolts i also in connection with the bolts n serve to hold the pan or the Wear plate o in place. Hence this pan may be easily removed when it Wears out. All these adjustments and removals can be made Without in any Way altering the support of the main plate upon the guy Wires.

In Fig. 3 the clamp 'for the trolley Wire is shown. One. trolley Wire passes out through the opening in the top of the main runner across the top oi: thel supporting plate f and through the center blocks into one oie the adjustable runners. The other Wire passes out of the adjustable runner and into one of the clamping` blocks and the end is then usually turned around and used as a guy yWire to one of the poles. The clamping blocks are forced down against the Wires by the nuts e engaging against the olaniping bars.

What l claim is:

l. A. trolley Wire frog, having in combi nation,'a main plate7 and one or more runners removably secured to the under side of the main plate and comprising each a body portion and an end piece clamped together to hold the trolley Wire to the runner..

2. A trolley Wire frog, having in combination, a main plate, a plurality of runners removably secured to the under side of the main plate, and a Wear piece secured to the under side of the main plate and removable When the said runners have been removed from the main plate.

3. A trolley Wire frog, having in combination, a main plate, a plurality ot runners bolted to the under side of the main plate so the same can be removed Without disturbing the supports oi the main plate, and a Wear piece secured to the under side ot the main plate and 'which can be removed vvhen the runners are removed Without disturbing the supports oit the main plate.

4. A trolley Wire frog, having in combination, a main plate, a main runner` supported on the said plate, and one or more point oll the runner in swi.

swinging runners supported on the main plate and adjustable on aras which ajnnoxL mate a coincidence with respect to an are Whose center is at the point ot the main runner.

5. A trolley ivire frog, having in combination, a main plate, a stationary or main runner supported on the main plate, and one or more swingingl or adjustable runners supported on a radius arin or arms Which have their center or centers closelyadjacent the side or sides ot the point ot the main runner but snl'liciently spaced to permit clearance 'tor the ilianges ol' the trolley Wheel.

6. trollo)Y Wire frog, having` in combination, a main plate, main runncI supported by the saine. and a sv-:inging or adjustable runner supported on a radius arni Whose center is closely7 adjacent at one side ot the point olr the main runner, the swing;-- ing ruimer being` offset at one sido oi the radius arm so that the point ot the swinging runner in swinging through an are apF proximates an are 'whose center would be at the point of the main runner.

l'. It trolley Wire frog, having in combination, a main supj'iortinpg plate provided with a` segmental slot, a. inain or stationary runner supported on the under sido et said plate, a radius arm supported adjacent the point or said runner on a pivot, a swing ing runner supported on said radius arni at one side thereof so that the point nl said swinging runner appimzimates an are Whose radius would have its enter :il tlu` point ol? the main runner, and a holt passing through said radius arm and through said segmental slot in the main plate lfor adjnstably securing said. swinging ruimer on the said main plate.

3. it trollo i iviie troO hariwT i i inhir j n, t. n o nation, a main plate, a stationary runner supported on the main plate, a renioxf'alilrnear piece or pan bolted to the under side of the main plate, a radius arni bolted through the main plate at a point closely adjacent the point oi the niain runner bin at one side thereof` and a swi'ng-lira` runner supported on said radius arn. at one side thereof and in such a way that the ing upon the pivot oi' the radius arni 'through an arc approximating a arc `whose radins would have its center at the point el the main runner.

ln testimony n'hereo'tl l allir; my signature. 

